A new speech enhancement method

Author

Linmei, Qin ; Guangrui, Hu ; Chongni, Li

Author_Institution

Dept. of E.E., Shanghai Jiaotong Univ., China

fYear

2001

fDate

2001

Firstpage

92

Lastpage

94

Abstract

The paper proposes a speech enhancement method in the wavelet domain, that is, using a soft thresholding to remove noise components from the wavelet coefficients of noisy speech. To prevent the quality degradation of the unvoiced sounds during the denoising process, we first separate unvoiced region from noisy speech and then apply the thresholding method in a different way from other regions. Simulation results demonstrate that the method has good performance. Considering the simplicity of the proposed algorithm, this method is proven to be very promising

Keywords

interference suppression; speech enhancement; wavelet transforms; denoising process; noise component removal; noisy speech; quality degradation; soft thresholding; speech enhancement method; thresholding method; unvoiced region; unvoiced sounds; wavelet coefficients; wavelet domain; Acoustic noise; Continuous wavelet transforms; Discrete wavelet transforms; Frequency; Minimax techniques; Signal processing; Speech analysis; Speech enhancement; Speech processing; Wavelet transforms;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Multimedia, Video and Speech Processing, 2001. Proceedings of 2001 International Symposium on

Conference_Location

Hong Kong

Print_ISBN

962-85766-2-3

Type

conf

DOI

10.1109/ISIMP.2001.925339

Filename

925339